筼筜湖无机氮分布特征与赤潮灾害防治研究  

Research on distribution characteristics of inorganic nitrogen in Yundang Lake: for prevention and control of the red tide

作　　者：傅海燕[1] 于淑杰[2] 黄国和[1] 谢巧燕[1] 陈韬[3] 高攀峰[1] 

机构地区：[1]厦门理工学院环境科学与工程学院,福建厦门361024 [2]华北电力大学资源与环境研究院,北京102206 [3]厦门市环境监测中心站,福建厦门361004

出　　处：《自然灾害学报》2015年第4期240-246,共7页Journal of Natural Disasters

基　　金：国家青年自然科学基金项目(51109181);福建省高校杰出青年科研人才项目(JA12243);厦门理工学院对外科技合作专项(E201400600)

摘　　要：2012年6-12月对厦门市筼筜湖8个采样点进行了水样采集和分析,测定了水温、水样中氨氮、硝酸盐氮和亚硝酸盐氮的浓度,揭示筼筜湖无机氮的时空分布特征,探讨了水温和降水量对各形态无机氮分布的影响,旨在为分析筼筜湖的污染状况和赤潮灾害防治提供数据参考。结果表明,筼筜湖内湖无机氮平均浓度为2.03 mg·L-1,外湖无机氮平均浓度为1.950 mg·L-1,内湖的污染程度更为严重;筼筜湖氨氮平均浓度为1.360 mg·L-1占无机氮浓度1.990 mg·L-1的68.30%,水体自净能力弱;水温对无机氮分布影响较小,降水对无机氮分布影响较大。Water samples were collected from the 8 sampling points in Yundang Lake , Xiamen City from June to December 2012. The water temperature as well as concentration of ammonia nitrogen, nitrate nitrogen and nitrite nitrogen in these water samples were measured, the spatiotemporal distribution characteristics of inorganic nitrogen was revealed, the influence of water temperature and precipitation on distribution of each kind of inorganic nitrogon was explored. Aim of this study is to provide basic information for prevention and control of polluton and red tide of Yundang Lake. The results show that the average concentration of inorganic nitrogen is 2.03 mg·L- 1 in the inside lake, 1. 950 mg· L-1 in the outside lake. Inside lake pollution is more serious, the average concentration of ammonia nitrogen was 1. 360 mg· L-1, accounting for 68.30% of inorganic nitrogen which average concentration is 1. 990 mg· L-1 Self-purification capacity of the lake is weak. Water temperature has a less influence on the dis- tribution of inorganic nitrogen, precipitation has a greater corresponding influence.

关 键 词：筼筜湖 无机氮 水温 降水量 赤潮灾害 

分 类 号：X524[环境科学与工程—环境工程]